[2E01-04] Next Generation Reactor Safety 1

[2E02] Development of a passive safety shutdown device to prevent core damage accidents in fast reactors

(4)Selection and material property evaluation for simulated fuel and fusible plug materials

*Isamu Sato¹, Kokin Oo¹, Daisuke Yamada¹, Yuji Arita², Kei Ando², Koharu Kawase², Tatsumi Arima³, Koji Morita³ (1. Tokyo City Univ., 2. Univ. of Fukui, 3. Kyushu Univ.)

Keywords:alloy fuel, salt fuel, melting, fusible plug, material properties

In this study, the physical phenomenon of fuel melting or fusible plug melting accompanying an increase in power and temperature is used as a passive furnace shutdown device mechanism. As for the fuel form, these simulated materials were selected as alloy fuels and salt-based fuels, and various physical properties were evaluated. In the case of salt-based fuel, a fusible plug is also used, but the physical characteristics of the candidate material for this material were evaluated and a suitable material was selected.